Optimization of tension combinations in flip-flow screen to enhance screening efficiency

The screening of sticky materials is a critical step in mineral processing. This study aims to enhance the screening efficiency (SE) of sticky particles through the optimization of tension combinations in a flip-flow screen (FFS) using the Taguchi experimental method. The FFS was divided into four equal regions along the feed to discharge axis, with the tension in each region considered a factor influencing the screening performance. The Taguchi method was employed to identify the optimal tension combination that maximizes SE. Subsequently, Analysis of variance(ANOVA) was conducted to evaluate the contribution of each region’s tension to the variability in SE. Furthermore, the motion patterns of the particle flow under the optimal tension combination were compared with those under the worst tension combination to elucidate the underlying mechanisms governing the influence of tensions on SE. The experimental results demonstrate that the optimized tension combination significantly improves SE by 9.17%. This optimization approach is not only straightforward to implement but also requires no additional energy input, making it highly advantageous for practical engineering applications.